What’s in the Box
AR-556 5.56mm Barrett Brown Cerakote
(1) 30-Round Magazine
Cable Lock
Owner’s Manual,The Ruger AR-556 Barrett Brown Cerakote semi-automatic, M4-style, direct impingement Modern Sporting Rifle offers consumers an affordable, American-made Modern Sporting Rifle with the rugged reliability they have come to expect from Ruger. Extensively tested during its development, the AR-556 is constructed from top-quality components, including forged 7075-T6 aluminum upper and lower receivers and a cold hammer-forged chrome-moly steel barrel with M4 feed ramp cuts.
Chambered in 5.56 NATO, the AR-556’s carbine-length, flat-top, M4 design is fully configured with a Ruger Rapid Deploy folding rear sight, milled F-height gas block with post front sight, forward assist, dust cover, brass deflector, telescoping six-position stock, improved trigger-reach grip, enlarged trigger guard and one 30-round Magpul PMag. Standardized M4/AR components are utilized throughout, so the AR-556 can be customized easily.
Firearm Specifications,Manufacturer: Ruger
Model: AR-556
Model Number: 8503
Caliber: 5.56 NATO
Weight: 6.50 lbs.
Length: 32.25 – 35.50 in.
Length of Pull: 10.25 – 13.50 in.
Width: 2.50 in.
Height: 8.00 in. (Without Magazine)
Capacity: 30-Rounds
Buttstock: Six-Position Telescoping / Mil-Spec Buffer Tube / Barrett Brown
Handguards: Heat Resistant Glass-Filled Nylon / Barrett Brown
Grip: Ergonomic Improved Trigger Reach / Enlarged Trigger Guard Opening
Sights: Elevation Adjustable Front / Windage Adjustable Ruger® Rapid Deploy Folding Rear (Front Sight Tool Included)
Upper Receiver: Flat Top 7075-T6 Aluminum Forging / Forward Assist Dust Cover and Brass Deflector / Type III Hard Coat Anodized
Lower Receiver: 7075-T6 Aluminum Forging / Type III Hard Coat Anodized | Cerakote Barrett Brown Finish
Bolt Carrier Group: Staked Gas Key / Chrome Plated Bolt Carrier ID and Gas Key ID / Matte Black Oxide Finish
Bolt: 9310 Alloy Steel / Shoot Peened / PT Tested
Barrel:
16.10 in. Medium Contour
Cold Hammer-Forged 4140 Chrome-Moly Steel
1:8 Twist Stabilizes Bullets from 35 to 77 Grain
M4 Feed Ramp Cuts
PT Tested
Threaded ½ – 28 with Ruger Flash Suppressor
Barrel Contour is .850 Under the Handguard .750 Under the Gas Block .700 Forward of the Gas Block
Matte Black Oxide Finished
Gas Block:
A-2 F-Height Pinned in Place
Multiple Sling Attachment Points and with QD Port and Bayonet Lug
Machined Low-Glare Serrations on Angled Face
Barrel Nut/Delta Ring:
Patent Pending Design
One Person Removal
Accepts Standard Handguards
Uses Standard Wrench Can be Swapped with a Mil-Spec Nut if Desired